Comment 0 for bug 25054

If a bookmark is mentioned in several topics, and I hit "delete" in one of them,
I'd expect it to only be removed from that topic. I'd only expect it to be
deleted entirely if I were deleting the last reference to it. I'd recommend
making separate buttons for "delete from topic" and "delete entirely", with the
default (bound to the delete key) to be "delete from topic".